Latch for cameras



mmh 4, 192@ mami@ J. A. ROBERTSON LATCH FOR CAMERAS Filq Aug. 16, 1922ersol@ INVENTOR. QOAZI Patented lidar. d, ldld@ err` Y 'naar JOEE? A.RUBERTSN, 01E NEW YORK, SSGNQR T0 EASTMAN. @GEILE mm, @F RQCHESTIER, NEWYlm, A. CRPQRATJIGN @F NEW TUEX.'

LATCH Application niet! august le, i922. Serial lto. 582,112@

Z7@ all 'whom t may concern.

Be it known that l, donn A. Ronnnrson, a citizen of the United States,residing at .f' cchester, in the county of Monroe, State ont New York,have invented certain new and useful Improvements in lhatches forCameras, or which the following is a speciiication.

My present invention relams to photogi'aph and more particularly tophotograp ic cameras or the type embodying a body portion and aremovable or dis laceable bach portion cooperating therewit and theinvention has tor its object to provide a simple, ecient andinconspicuous latch for securely locking the parts together in a mannermaking it convenient for the operator to engage or release the'same.rl"he improvements are directed in part toward hitting a sliding latchwith a trictional tensioning means ol a simple character readilymanuactured and assembled and which maintains the latch in any of itsadjusted positions, 'lo these and other ends the inven- "tion consistsin certain improvements and combination of parts all as will behereinafter more 4iully described, the novel features being pointed outin the claim at the end or the specidcation.

ln the drawings:

Figure l is a side view oil a camera provided with a latch constructedin accordance with and illustrating one embodiment ci my invention, thecarrying handle being removed in this and the other views.

Figure 2 is a similar enlarged view partly broken away and partly invertical section transversely through the latch.

Figure 3 is a top view ol the camera showing the latch engaged.

Figure l is a similar view latch disengaged.

Ill'gnre 5 is a longitudinal central section throigh the latch von theline 5-5 oi Figure Figure 6 is a perspective view oi the tensio washerplate. Y

Similar reference numerals throughout e several views indicate the sameparte.

ln the present embodiment l have illustrated my invention as applied toa folding pocket hand camera of a familiar type compris the body portion1 and a back 2 removab e therefrom and cooperating therewith on' theline 3 in connection 'with the showing the l0 which latter are usuallight sealing devices indicated generally at 3B and 3b in Figure 2. Atthe bottom the light sealing anges are formed with interlockingshoulders l so 'that when the bottom ci the back is rst engaged with thebottom of the body and the back then swung into complete contact withthe body the disengagement of the bottom portion must follow thedisengagement of the top portions so that locking devices arranged atlthe top are controlling.

.ln the practice of my invention l provide a latch at the top ci thecamera comprising in the present instance a sliding bolt 5 on the bodyand a pair or upstanding catch pins 6 spaced apart along the top edge cithe bach 2. rllhe bolt 5 is provided with two bayonet slots 7 formingengaging ngers 8 having cam edges so that when they cooperate with thepin 6 they will draw the back in against the body. 'lwo longitudinalslots 9 in the bolt travel on two headed guide pins l0 on the body l andthe bolt is confined beneath the headsof these pins. Projecting from thesame side oi the bolt as the engaging ngers 8 but also latter is asuitable linger piece extension l1 by means of which the bolt isoperated and which becomes readily accessible to the lingers at one sideci the usual carrying strap (not shown) that spans the top of cameras ofthis kind.

lln order to maintain the bolt yieldably in either its engaged ordisengaged position, ll provide tensioning device l2 shown in detail inFigure 6. 'lhis comprises in the present instance a washer plate orstrip secured beneath shoulder 13 on the guide pins riveted to the shellof the camera body as clearly shown in Figure 5. 'lhe a ertures la inthe washer plate throu h which the ins or rivets pass are s ace apart avery s ightly greater distance t an are these pins so that when theplate is applied to the pins it buckles or bows in an upward directionas shown in Fi e 5. '.lhe parts all being held together y the rivets,the result of this is that bulging plate exerts at/Substantial pressureagainst the bolt 5 and odors a frictional resistance sucient to maintainit with desired security in any adjusted position though allowing thebolt an easy sliding movement when sucient energy is exerted on thefinger piece ll.

projecting beyond the f Mld lll@

- mettere A let/eh of this ehereeter is readily of the guide pinne one!eoleptel to erige@ the etrmpetl perte endl eoeily eseemhledl hyreleeet/eh, wml e Warmer' plete hemeeth the holt tively unskilledWorkmen es it is sel -amleonsrstmg or? e lete haring epe/eedoperjuretimg.; tures through W ich the guide plus page,

C3 E eleim es my invention:

o n seid e, ertures being soeedl apart e. distance The oomhlmttlom *mthe camere body emol sllght y greeter them t et between the gu'le e heckeooperetmg therewith, el e letoh for ins to eeuse the plete to how emolexert o.

relezreehly eeeurngeehl parte together comrrietiomel tension om theholt.

prnemg e eet/ch om ome perla, speeexl mdle 30 pim@ omi the other$7 esliding holt more e on JHN A. PtBERTSN.

